24. Suppose you have a situation but do not know whether the distribution of the

Question

24. Suppose you have a situation but do not know whether the distribution of the data is bell-shaped. You would expect around 88.9% of the data to fall between what limits; given the data below. Mean = 22.5 with Standard Deviation = 0.8 A. Not enough information to tell B. 20.1 and 24.9 C. 20.9 and 24.1 D. 21.7 and 23.3 25. Which of the following statements is TRUE? A. A bar graph uses bars to represent the amount of data in each category. B. A pie chart is useful to describe quantitative data. C. It is possible to retrieve original data from a histogram. D. It is not possible to retrieve original data from a stem and leaf diagram. Ronue

Explanation / Answer

Q 24. Ans: The correct answer from the list is "A": Not enough information to tell. Because to find the confidence interval of the sample mean we required to know the sample size together with the distribution should be symmetric.

Q. 25. The correct answer from the list is "A": A bar graph uses to represent the amount of data in each category.

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